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Finding the Fourth Proportional to 719,034.87, 992,327.66 and 413,170.67

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Solution

The fourth proportional to 719,034.87, 992,327.66 and 413,170.67 is: 570,209.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,034.87 : 992,327.66 = 413,170.67 : x
  2. Step 2: Convert to fraction form
    719,034.87/992,327.66 = 413,170.67/x
  3. Step 3: Cross multiply
    719,034.87x = 992,327.66 × 413,170.67
  4. Step 4: Simplify right side
    719,034.87x = 410,000,686,106.09
  5. Step 5: Solve for x
    x = 410,000,686,106.09/719,034.87
  6. Step 6: Final answer
    x = 570,209.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.